Temperate fruits grow on deciduous trees, vines, bushes, and on the ground. Temperate zones usually have equally long winters and summers. The north temperate zone extends from the Tropic of Cancer at about 23.5 degrees north latitude to the Arctic Circle at about 66.5 degrees north latitude. The south temperate zone extends from the Tropic of Capricorn at about 23.5 degrees south latitude to the Antarctic Circle at about 66.5 degrees south latitude.
Tropical fruits, such as bananas and avocados, cannot withstand a light frost. Subtropical fruits need warm or mild temperatures, but they can survive a light frost. The most common subtropical fruits are oranges, grapefruits, lemons, and limes.
Tropical fruits usually have a thick skin that is not edible, because they help retain water in a hot climate and protect the fruits from predators like monkeys and birds with sharp beaks. Coconuts, avocados, and bananas have a thicker skin than apples and pears. Temperate fruits tend to be firm and juicy with a high sugar content, and flesh that supports seed growth.